Title:
CARBON FIBER-BASED HEAT INSULATION MATERIAL AND METHOD OF MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2022138515
Kind Code:
A
Abstract:
To provide a carbon fiber-based heat insulation material in which a surface layer is formed that curbs degradation, gas permeation, and the like.SOLUTION: A method of manufacturing a carbon fiber-based heat insulation material comprises: a lamination step of laminating a carbon fiber-based heat insulation base material and an adhesive sheet made of thermoset resin having a softening point; a provisional bonding step of provisionally bonding the carbon fiber-based heat insulation base material and the adhesive sheet by heating to a temperature higher than the softening point and softening the thermoset resin; a lamination material preparation step of preparing a lamination material by laminating a carbon-based sheet on the adhesive sheet; a bonding step of, while applying pressure to the lamination material from the carbon fiber-based heat insulation base material side and the carbon-based sheet side, heating the lamination material to a hardening temperature or higher and bonding the lamination material; and a heat processing step of thermally processing the lamination material in an inert atmosphere and carbonizing the thermoset resin. Bulk density of the carbon-based sheet is larger than bulk density of the carbon fiber-based heat insulation base material.SELECTED DRAWING: None
Inventors:
TAKEUCHI KEIICHI
Application Number:
JP2021038435A
Publication Date:
September 26, 2022
Filing Date:
March 10, 2021
Export Citation:
Assignee:
OSAKA GAS CHEM KK
International Classes:
C04B35/532; B32B18/00; C04B38/00; F16L59/02
Attorney, Agent or Firm:
Omae Kaname
Yasuhiro Ando
Yasuhiro Ando
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